I remember purchasing an over-priced Magnavox console color TV in the 1960s, complete with a complement of about twenty or so vacuum tubes and a humongous shadow-mask CRT. Then for the next ten years or so, I tried to keep it running by replacing various "valves" as their filaments failed, or the bulbs became "gassy" or their electron-emissive coatings on their indirectly heated cathodes simply gave up the ghost. At some point near the end of the previous century, we junked the Magnavox and replaced it with a Sony Trinitron TV. IIRC, the picture was noticeably brighter but not sharper... a deficiency of the NTSC scan definition.
It was many years later (seemed like forever!) that the technology improved enough to create a higher definition television using "flat screen" technology as typified by plasma and LCD displays. For awhile it looked like rear-screen projection was the way to go for bigger screen formats, and we did in fact once own such a monstrosity that used three separate CRTs to display red, green, and blue rasters... precisely registered of course... except at the edges of the screen. For a very brief period I was enamored with the Texas Instruments light-valve method of rear-screen projection... I even seriously considered purchasing one for home use, but after some due diligence and research decided it wasn't really ready for prime time home use.
Of course, years later, film became obsolete and theaters began replacing 35mm film projectors with light-valve projectors, and receiving their entertainment product digitally instead of in huge film canisters that traveled from theater to theater. It was somewhere in this time-frame period, near the turn of the century, that wife and I decided we could afford a flat-screen LCD color TV... well, two actually, one for the bedroom and a larger one for the living room. Both made by Samsung, along with a Samsung Blu-Ray DVD player. The Blu-Ray player promptly failed and was soon replaced by a Sony (no bologna) real Blu-Ray player. We then proceeded to rent and/or purchase a fortune in both DVD and Blu-Ray movies, replacing a fortune in VCR tapes that we had earlier acquired and giving up cable television but keeping our cable ISP. Netflix and Amazon Prime became our primary "paid video" streaming sources, although for a short period of time we also subscribed to the Netflix disks-by-mail program too.
And so it remains today... a house full of DVDs and Blu-Ray disks, a newer Sony Blu-Ray player with Internet connectivity for streaming video, an Apple TV thingy for streaming to/from wife's Apple products and the HDMI Samsung TV in the bedroom, an Amazon Fire Stick (just because it was available really cheap) that is our primary streaming connection now.
The bigger Samsung LCD TV finally failed this year, but we had a spare, inherited from my brother after he died last year. There is a YouTube video that shows how to DIY repair the Samsung, but it requires an almost complete face-down disassembly, starting from the back and proceeding toward the front to access a circuit board that is "shorting out" some sort of signal against something metallic. The repair, IIRC, consists of placing insulating electrical tape around the offending part and then putting it all back together in reverse order of disassembly. Wally-World is selling "55-inch class" 4K TVs for less than $300 this week... an unrecognizable Chinese brand of course, but why not give it a try? Except wife wants me to buy a Roomba robotic vacuum cleaner first... or at least a functionally equivalent look-alike. And she also wants a steamer/vacuum cleaner for our all-ceramic tile floors.
You wouldn't believe how happy I was when they started selling TVs without visible scan lines, or tiny colored dots (or bars: Trinitron) on the screen!